Glass network mosaic bowl fragment late 1st century B.C.-early 1st century A.D. Roman Rim fragment.Translucent blue, opaque yellow, and colorless.Applied coil rim; slightly convex curving side, tapering downward. Rim in blue with white spiral thread; body decorated with fourteen colorless canes, slanting from top left to bottom right, decorated with double spirally twisted white threads.Rim partially chipped; pinprick bubbles; exterior polished, with pitting of surface bubbles; dulling, iridescence, and creamy weathering on interior; jagged, weathered edges.Bowls of this type with network patterns typically have a rim made in contrasting colors, as here in blue and opaque white.. Glass network mosaic bowl fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast. Early Imperial. Glass